Publications by authors named "Nupur Sinha"

Spontaneous regression (SR) of cancer refers to partial or complete disappearance of a malignant tumor in the absence of treatment or in the presence of therapy, which is considered inadequate to exert a significant influence on the growth of neoplastic disease. SR is a very rare phenomenon in primary lung cancers. Follow-up of these patients is generally either by imaging or bronchoscopy.

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Clostridium perfringens bacteremia is associated with adverse outcomes. Known risk factors include chronic kidney disease, malignancy, diabetes mellitus, and gastrointestinal disease. We present a 74-year-old man admitted with confusion, vomiting, and abdominal pain.

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Necrotizing fasciitis is an uncommon soft-tissue infection, associated with high morbidity and mortality. Early recognition and treatment are crucial for survival. Acinetobacter baumannii is rarely associated with necrotizing fasciitis.

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Pregnancy is a diabetogenic state characterized by relative insulin resistance, enhanced lipolysis, elevated free fatty acids and increased ketogenesis. In this setting, short period of starvation can precipitate ketoacidosis. This sequence of events is recognized as "accelerated starvation.

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Lung cancer among never-smokers is recognized as the 7th most common cause of cancer death globally. Adenocarcinoma is the most commonly reported histology. Small cell lung cancer (SCLC) has the strongest association with smoking and is rarely reported in never-smokers.

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Pulmonary hypertension (PH) associated with malignancy, especially adenocarcinoma, is a well-known entity and is included in group V of the WHO classification. Intravascular lymphoma is a rare type of diffuse large B cell lymphoma, characterized by selective intravascular growth of malignant lymphocytes, aggressive behavior, and often a fatal course. Most of the time, diagnosis is postmortem due to the rarity and the protean manifestations of the disease.

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High-quality self-assembled V(2)O(5) nanofiber-bundles (NBs) are synthesized by a simple and direct hydrothermal method using a vanadium(v) hydroxylamido complex as a vanadium source in the presence of HNO(3). The possible reaction pathway for the formation of V(2)O(5) NBs is discussed and demonstrated that HNO(3) functions both as an oxidizing and as an acidification agent. V(2)O(5) NBs are single-crystals of an orthorhombic phase that have grown along the [010] direction.

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Layered LiNi(1/3)Co(1/3)Mn(1/3)O2, which is isostructural to LiCoO2, is considered as a potential cathode material. A layer of carbon coated on the particles improves the electrode performance, which is attributed to an increase of the grain connectivity and also to protection of metal oxide from chemical reaction. The present work involves in situ synthesis of carbon-coated submicrometer-sized particles of LiNi(1/3)Co(1/3)Mn(1/3)O2 in an inverse microemulsion medium in the presence of glucose.

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Effects of exogenous dehydroepiendrosterone (DHEA) administration on the levels of lipid proxidation products, malondialdyde (MDA)-a thiobarbuteric acid reactive substance (TBARS) and 4-hydroxynonenal (4-HNE) in different brain regions viz. cerebral cortex, hippocampus cerebellum, and brain stem of 12 and 22 months old rats were studied. DHEA treatment significantly depressed TBARS and 4-HNE in all the brain regions studied, in both the age group rats.

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